BAOSHISHAN 1/3 HP Cold Plunge Chiller
#8 in Up to 1/2 HPFull review
A plain indoor chiller for a ported one-person tub.
Amazon $266.80$266.80
The BAOSHISHAN 1/3 HP Cold Plunge Chiller is the better cold plunge chiller overall, rated 3.1 to 2.6. The BAOSHISHAN 1/3 HP Cold Plunge Chiller leads on value. The Active Aqua Outdoor Cold Plunge Chiller wins on coldest. The BAOSHISHAN 1/3 HP Cold Plunge Chiller costs $932.20 less ($266.80 vs $1,199).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Active Aqua Outdoor Cold Plunge Chiller Preorder
#16 in Up to 1/2 HPFull review
An outdoor-rated small chiller for a one-person tub in moderate heat. Its price is closer to 1 HP units from other makers.
Amazon $1,199$1,199
Which should you buy?
- Choose the BAOSHISHAN 1/3 HP Cold Plunge Chiller for value ($808 per HP ($266.80, 1/3 HP) vs $3,633 per HP ($1,199, 1/3 HP)).
- Choose the Active Aqua Outdoor Cold Plunge Chiller for coldest (down to 39 °F vs down to 42 °F).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 1/2 HP cold plunge chiller; a clear win is highlighted. How we rank explains each one.
| Factor weight | BAOSHISHAN 1/3 HP Cold Plunge Chiller | Active Aqua Outdoor Cold Plunge Chiller |
|---|---|---|
| Overall rating | 3.1/5 | 2.6/5 |
| Value 30% | 81 $808 per HP ($266.80, 1/3 HP) | 20 $3,633 per HP ($1,199, 1/3 HP) |
| Coldest 15% | 38 down to 42 °F | 75 down to 39 °F |
| Sanitation 10% | 50 filter | 50 filter |
| Heating 10% | 50 heating not stated (neutral score used) | 50 heating not stated (neutral score used) |
| Noise 10% | 50 noise rating not published (neutral score used) | 50 noise rating not published (neutral score used) |
| Warranty 25% | 0 1-year warranty | 0 1-year warranty |
Specifications
| BAOSHISHAN 1/3 HP Cold Plunge Chiller | Active Aqua Outdoor Cold Plunge Chiller | |
|---|---|---|
| Cooling | ||
| Compressor | 1/3 HP | 1/3 HP |
| Lowest temperature | 42 °F | 39 °F |
| Refrigerant | R290 | R-513A |
| Water and build | ||
| Filter | Yes | Yes |
| Voltage | - | 120 V |
| Warranty | 1 year | 1 year |
| Released | - | Pre-order |